Mounting The Appliance; Condensate Connection - Biasi RIVA OV M110.18SM/OV User Manual And Installation Instructions

Mounting the appliance

Fig. 11.
4.4 Central Heating Service Connections
Refer to Figure 12.
a) The boiler is supplied with 22mm copper tails
for both upwards and downwards (optional)
flow and return pipe routing suitable for
compression or soldering connections.
USE EXTREME CARE IF SOLDERING THE
JOINTS NEAR TO THE APPLIANCE. IF
BOILER IS LOCATED IN TIGHT SPACE IT IS
RECOMMENDED TO REMOVE THE PIPES
FROM THE BOILER.
b) Connect the central heating system pipes to
the central heating flow and return pipes on
the boiler. If downwards routing is required:
The sealed ends must be removed before
connecting to the heating system pipes. The
upwards pipes may be used for connecting to
a vent pipe (open system) or fitting to an
automatic air vent (sealed system). The
remaining pipe must be solder sealed.
!
Important Note: When
from below the flow and return
sensors have to be removed from
the upwards pipes and reconnected
to the downward pipes (Fig 4; flow is
nearest to the front).
c) Commission the central heating system as
described in section 5.1, and then proceed to
section 4.5.
4.5 Central Heating Service Connections
Refer to Figure 12.
18
Service Connections
Fig. 12.
Connect the gas supply pipe to the gas service
cock. It is recommended that a minimum of 22
mm diameter OD copper pipe be used to within
1000 mm of the gas service cock.
4.6
Refer to Figure 12.
Connect
adhesive overflow pipe to the condensate outlet.
It should be piped to drain, preferably within the
building, maintaining a continuous 2° fall away
from the appliance. Note: The internal trap has a
seal of 150 mm therefore an external trap is not
required. 32 mm pipe should be used for
external pipe work, or if the appliance is installed
in a garage. If the drain is routed externally to a
drain or soak away, then the external length
should be kept as short as possible and not
exceed 3000 mm. Protection from freezing in
cold weather conditions is also advisable.
Ensure that the condensate discharge system
routing pipes complies with any local regulations in force.
The drain pipe material should be resistant to
acid with a pH less than 6.5. Suitable materials
for the condensate drainage pipe are PVC,
UPVC, ABS, PP or PVC-C.
In exceptional circumstances, such as when a
boiler is installed in a basement without
drainage, it may be necessary to install a
condensate pump to carry condensate up to
ground/drain level. Such products are available
from Grundfos Pumps Ltd on: 01525 850000
and Pump House on: 0115 922 2211.

Condensate Connection

preferably a 22 mm plastic push fit or